How to use

Mix with L'Oréal Professionnel Creme Developer only — 12.5 vol (3.75%), 20 vol (6%), 30 vol (9%) or 40 vol (12%) maximum. Match the developer strength to your technique and the lift required.

Mixing ratios

• Open-air and freehand (off-scalp): 1:1, using 20, 30 or 40 vol.
• Enclosed highlights (foils or meche): 1:1.5 to 1:2, using 12.5, 20 or 30 vol.
• On-scalp: 1:3, using 12.5, 20 or 30 vol.

Development time: up to 50 minutes. Use 40 vol for off-scalp application only and never exceed it.

Professional use only. Always carry out a strand test and an allergy alert test, and follow the current packaging instructions.

How many levels of lift does Blue Powder Bleach give?

Up to 8 levels of lift, depending on the developer strength, technique and the client's starting base.

Which developer should I use?

Only L'Oréal Professionnel Creme Developer — from 12.5 vol up to 40 vol (12%) maximum.

What is the mixing ratio?

Open-air and freehand work is 1:1 (off-scalp); enclosed highlights are 1:1.5 to 1:2; on-scalp application is 1:3.

Can it be applied to the scalp?

Yes, at a 1:3 ratio using 12.5, 20 or 30 vol. Reserve 40 vol for off-scalp techniques only.

Which techniques does it suit?

Global lightening, enclosed highlights and open-air freehand or balayage — it flexes across all three, which is why it is called Multi-Techniques.

Is it suitable for all hair types?

Yes. The low-volatility, pro-keratin formula is suitable for all hair types.

What is the development time?

Up to 50 minutes. Monitor lift visually throughout and do not exceed the maximum.

How should I tone afterwards?

For the cleanest finish, tone Blond Studio lightening services with Dia Light by L'Oréal Professionnel.